Mindray WATO EX-65Pro - Electrical Safety Inspection Form; Electrical Safety Inspection Test

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4.15.3 Electrical Safety Inspection Test
1. Perform protective earth resistance test:
a. Plug the probes of the analyzer into the protective earth terminal and equipotential
terminal of the AC power cord.
b. Test the earth resistance with a current of 25 A.
c. Verify the resistance is less than 0.1ohms (100 mohms).
d. Plug the probes of the analyzer into the protective earth terminal of the AC power
cord and the protective earth terminal of any auxiliary outlet. Repeat steps b and c.
e. If the resistance is larger than 0.1ohms (100 mohms) but less than 0.2ohms (200
mohms), disconnect the AC power cord and plug the probe that is previously plugged in
the protective earth terminal of the AC power cord into the protective earth contact of
the power outlet. Repeat steps a to d.
2. Connect the compressor, if configured, to the auxiliary electrical outlet.
3. Perform the following earth leakage current tests:
 normal polarity;
 reverse polarity;
 normal polarity with open neutral; and
 reverse polarity with open neutral.
4. Verify the maximum leakage current does not exceed 500 μA (0.5 mA) in the first two
tests. While for the last two tests, verify that the maximum leakage current does not
exceed 1000 μA (1 mA).
NOTE
 Make sure the safety analyzer is authorized by certificate organizations (UL, CSA,
or AAMI etc.). Follow the instructions of the analyzer manufacturer.
4.15.4 Electrical Safety Inspection Form
Location: Technician:
Equipment: Control Number:
Manufacturer: Model: SN:
Measurement equipment /SN: Date of Calibration:
INSPECTION AND TESTING Pass/Fail Limit
1 Auxiliary mains socket outlets
2 Protective Earth Resistance Ω Max 0.1 Ω
3 Earth Leakage
Normal
condition(NC)
____μA
Max:
NC: 500μA
SFC: 1000μA
Single Fault
condition(SFC)
____μA
4
Patient
Leakage
Current
Normal
condition(NC)
____μA
Max:
NC: 100μA
SFC: 500μA